Plate-web wheel



W. E. WILLIAMS.

PLATE WEB WHEEL. APPLICATION FILED 05c. 15, 1919.

1,398,'6 1 4. v Ptented Now-29; 1921.

a i enema-WEB WHEEL.

essors.

To all whom it may concei e:

. Be it known that I, WILLIAM Eaasrus WILLIAMS, a citizen of the UnitedStates, a resident of Chicago, in the county of Cool: and v State ofIllinois, have invented a new and useful Improvement in Plate-WebWheels, of which the following; is a specification.

The object of my invention is to provide a cast hub and a cast rim androlled Web plate wheel, that will have all the advantages and theappearance of a cast plate wheel and yet be cheaper to make than a castplate wheel.

In making a wheel that has a cast plate web the large surface area ofthe. plate casting is quite hard to make and the large area allows dirtto flow and settle in the cope side of the casting and thus producecasting fault that increase the foundry losses and increase the cost ofthe product.

Reference will be had to the accompanying drawing in which Figure 1 is afront elevation of my wheel.

Fig. 2 is a sectional elevation, showing only one-half of the wheel buton a larger scale than Fig. 1.

Fig. 3 is a sectional view on line around the hub aperture of the web onstill a larger scalethan that of the other figures.

In the drawing 1 indicates the plate web of my wheel, which is providedwith short taperin corrugations 2.for stilfening purposes w ere it joinsthe hub. a

In the marginal regions, both around the outside margin of the plate andaround the central-hole, into which the hub is cast, I provide a seriesof notches or apertures 3 which are produced by punching or drillshownhavin ing, to facilitate securing the cast metal to the rolled metallets.

The rim is ma e of cast metal in the form the edge flanges 4e and thecurved stifi'emng section 5, which incloses the outwardly open channel6, and this is bridged across at intervals by the cross bars 7 and thetread of the wheel is closed 1 by means 10f the solid rubber tire base8,

as these wheels are always used with rubber tires. I I The motion 5 ismerged into the flan ed section '9 which embraces the outside e go ofthe late 1. v

The ub of the wheel is shown by 10 and is cast on to the plate 1 in theTLOIIQ of'its cQrrugationsQ through the med um of the Specification ofLetters Patent.

PatentedNova 2%, 1921.

Application filed Ziecember 15, 1919. Serial Ito. 344,885.

flanges 11 and 12, which embrace the inner edge of the'hub apertures orthe plate 1.

In-manufacturingmy wheel 1 form the plate disk 1- and put it as aninsert, in the mold and then rim.

By reason of the apertures 3 around the rim of the plate 1 the shrinkageof the metal of the rim is localized right where it occurs and shrinkagestrains thus do not become serious matters, but are ofiset by theannealing of the casting after it has beenmade. The same conditionsexist around the hub, with the (lifie rence that the shrinkage of thehub serves to draw to a smaller diarneter and thus draws or pulls awayfrom the steel plate.

However, the corrugated frame of the plate allows a slight buckle oi theplate a little larger in the casting before the cool ing becomessuflicient to make f strains cause large cracks, and these strains areequalized in the annealing as before described.

The corrugated form of the plate, where it joins the hub permits asecure union. of

these parts, even though the metal were to'pull away slightly indiameter as, even then the :plate, owing to its corrugations, Will bebound firmly in its seat in 11 and 12.

What I claim is v 1. The combination with a cast huh, of a rolled wheeldisk having a plain circurn" ferential zone at some distance from thehub and. in the medial plane of the whedhthe inner mar n of said zonebeing braced he integral ch vergent ribs held in the huh metal, and arim cast on the peripheral reargin of the disk. 3

2. The combination with a wheel disk haw in a plain outer zone at somedistance from cast on both the hub and the,

till

rolled plat/e wheel disk oil approximately uniform thickness having acentral opening each margin cut away at intervals alon to receivecast-on metal, an having at its huh opening deep corrugations "taperedto zero at some distance from that opening,

' Wheel disk, of a wide east-0n rim whereby tho uniformly thin disk hasthe in. radical cross sectmm.

e The combination with a uniiormly thin will an inwardly extendinannular central ri med. 2; central, outward 7 open, annular channelextending into the rib, saicl rib engaging along its inner side theouter margin of the disk and forming a continuous lateral brace 10lateral stiifness of a disk outwardly tapered therefor from each sideportion oi the rim.

Signed at Chicago, in the county of Cook and State of Illinois, thisthirteenth day of December, 1919.

WILLIAM ERASTUS WILLIAMS. Witnesses:

B. J. BERNHARD, J. B. JEFFERSON.

